Basic Model Definition
상표: SIRAI (now owned by ASCO Emerson, original Italian manufacturer)
모델: L323V01G
기능: 3/2 Direct-Acting Normally Closed (NC) Mini Solenoid Valve Body (Coil Not Included; ZA/ZB Series Coils to Be Ordered Separately)
- 핵심 기술 사양
Fluid Structure Parameters
| 매개변수 항목 | 사양 |
| Circuit Configuration | 3-Way 2-Position, 평상시 닫힘 (NC) |
| Actuation Type | 직접 작용 (No pilot; reliable actuation at low pressure) |
| 포트 스레드 | G1/4 Female Thread (ISO228/1) |
| 오리피스 직경 | 1.5 mm |
| Flow Coefficient Kv | 0.08 m³/h |
| Valve Body Material | OT58 Brass |
| Standard Seal | NBR Nitrile Rubber (FKM Fluoroelastomer / EPDM Optional) |
| Max Medium Viscosity | 37 cSt (5°E) |
압력 범위
Max Static Pressure Rating: 40 술집
Operating Pressure Differential for AC Coils: 0 ~ 16 술집
Operating Pressure Differential for DC Coils: 0 ~ 10 술집
온도 범위
중간온도: -10℃ ~ +90℃
주변 온도: -10℃ ~ +50℃ (Max 60℃ for Class F Coils; Max 80℃ for Class H Coils)
전기적 매칭 (Coil Not Included with Valve Body)
Compatible Coil Models: ZA10A, ZB10A, ZA13A, ZB14A, 등.
Standard Voltages:
교류: 24V/50Hz, 110다섯, 220/230V 50Hz
DC: 12다섯, 24다섯
유입 방지: IP67 when fitted with standard DIN connector; 100% 에드 (Continuous energization without coil burnout)
- 3/2-Way Operating Principle
- 전원이 차단됨 (Normal Closed State): Inlet Port 1 is sealed; 포트 2 communicates with exhaust Port 3 for pressure relief.
- 활력이 넘침 (Open State): Solenoid pulls plunger; flow path 1→2 opens, exhaust Port 3 폐쇄되었습니다.
응용: Pneumatic direction switching, vacuum gripping, small air circuit shutoff, water spray control.
- Compatible Media & 산업용 애플리케이션
- Applicable Media: 압축공기, nitrogen, clean water, diluted coolant, non-corrosive inert gas.
NBR is incompatible with oil and high-temperature steam; select FKM seal version for corrosive media.
- 일반적인 응용 분야
Mini pneumatic directional valves for automation equipment
Water circuit control for small washers and humidifying spray systems
Small air circuit shutoff for packaging machines & 섬유 기계
Laboratory instruments & miniature vacuum circuit control
- 모델 선택 & Matching Guidelines
- Complete Order Model Format: L323V01G-ZA10A 230VAC (Valve Body + 코일 + 정격전압)
- Seal Upgrade: Custom valve bodies with FKM fluoroelastomer seals available for high-temperature / oil-water working conditions.
- 대체 모델: Same series L323V02G (상시 열림 아니오), L323V03G Universal Type
- 장착 요구 사항: Mountable at any angle. Install a 40–100 mesh filter upstream of piping to prevent plunger jamming by contaminants. Only wrap the last two rear threads of male pipe threads with PTFE tape to avoid debris entering the valve chamber.
- 일반적인 문제 해결 매트릭스
| 결함 현상 | 근본 원인 | 교정 조치 |
| 전원이 공급되면 스위칭 없음 | 구운 코일, 일치하지 않는 전압, pressure differential exceeds 10 bar for DC | Replace matching coil; reduce pipeline pressure differential |
| Persistent leakage after shutdown | Contaminants on plunger, aged seals | Disassemble and clean plunger; replace NBR/FKM seal kit |
| Coil heats up rapidly | Incorrect voltage selection, long-term excessive pressure differential, damaged coil insulation | Verify nameplate voltage; adopt Class H high-temperature coil |
| Continuous air leakage from exhaust port | Worn plunger, seal scratched by particulate media | Install upstream filter; replace complete valve body assembly |
ASCO SIRAI L323V01G Solenoid Valve Instruction Manual
Full Product Name: SIRAI L323V01G 3/2 Direct-Acting Normally Closed Mini Solenoid Valve Body (Coil Not Included)
Brand Affiliation: SIRAI Italy, a fluid control brand under Emerson ASCO
적용 가능한 표준: CE, UL, RoHS 규제, DIN43650 electrical connector, ISO228/1 pipe thread
Table of Contents
- 제품개요 & 모델 해석
- 핵심 기술 사양
- Valve Body Structure & Fluid Circuit Principle
- 재료 & Seal Selection
- Matching Coil Models & 전기 사양
- 전체 치수 & 장착 방법
- Piping Installation Specifications
- Electrical Wiring Instructions
- Media Compatibility & 응용 시나리오
- 유지관리 절차
- 고장 진단 & 구제책
- Complete Order Model Rules
- Safety Prohibitions
- 제품개요 & 모델 해석
1.1 Product Introduction
The L323V01G is a 3-Way 2-Position Normally Closed (NC) direct-acting solenoid valve body. Pilot-free design enables reliable startup under low pressure. Compact size adapts to miniature pneumatic, water and vacuum control loops. Valve body and coils are supplied separately; ZA/ZB series coils must be ordered independently.
1.2 Model Breakdown – L323V01G
| 분절 | 정의 |
| L323 | L323 series miniature direct-acting solenoid valve platform |
| 다섯 | Brass valve body version (OT58 Brass) |
| 1 | 3/2 평상시 닫힘 (NC) |
| G | G1/4 BSPP Female Thread (ISO228/1) |
Suffix Comparison for Same Series:
02 = 3/2 평상시 열림 (아니요)
03 = 3/2 Universal Type
Thread Suffix F = G1/8
- 핵심 기술 사양
2.1 Fluid Performance
| 매개변수 항목 | Standard Specification |
| Functional Type | 3-Way 2-Position, 평상시 닫힘 (NC) |
| 포트 크기 | G1/4 Female Thread |
| Seat Orifice Diameter | 1.5 mm |
| Flow Coefficient Kv | 0.08 m³/h |
| Max Medium Viscosity | 37 cSt (5°E) |
| Max Static Pressure Rating | 40 술집 |
| Max Operating Differential Pressure (AC 코일) | 0 ~ 16 술집 |
| Max Operating Differential Pressure (DC 코일) | 0 ~ 10 술집 |
2.2 온도 범위
중간온도: -10℃ ~ +90℃ (NBR Seal); -10℃ ~ 120℃ (FKM Fluoroelastomer Seal)
주변 온도: -10℃ ~ +50℃ for standard Class F coils; max 80℃ for Class H high-temperature coils
2.3 보호 & 인증
IP67 dustproof and waterproof with standard DIN connector
CE EMC compliance, UL coil certification, RoHS lead-free environmental standard
Coils support 100% ED continuous energization without overheating burnout risk
- Valve Body Structure & Fluid Circuit Principle
3.1 Valve Port Number Definition (3-Way)
포트 1 (피): Media Inlet (Air/Water Supply)
포트 2 (에이): Actuator Outlet (Cylinders, Spray Nozzles, Vacuum Suction Cups)
포트 3 (아르 자형): 배기가스 / Drain Port
3.2 Operating States
- De-energized Normal State (NC Closed)
Spring resets the plunger to seal Port 1; 포트 2 connects to Port 3 for pressure relief at the actuator end.
- Coil Energized Open State
Solenoid magnetic force overcomes spring tension to pull the plunger; flow path 1→2 opens for media output, and Port 3 exhaust passage is sealed.
- 재료 & Seal Selection
4.1 Base Materials
Valve Body: OT58 Brass
플런저 & Moving Armature: 스테인레스 스틸
봄: 304 스테인레스 스틸
4.2 Seal Material Selection Table
| Seal Grade | 재료 | Applicable Media | Max Temperature |
| Standard Factory Fit | NBR Nitrile Rubber | 압축공기, clean water, diluted coolant | 90℃ |
| Optional Upgrade | FKM Fluoroelastomer | Engine oil, diesel, high-temperature water, weakly corrosive solvents | 120℃ |
| Special Custom | EPDM Ethylene Propylene Rubber | 뜨거운 물, ozone, weak acid water | 110℃ |
- Matching Coil Models & 전기 사양
Coils are not included with valve bodies. Complete valve assembly requires matching ZA/ZB series coils; 표준 모델: ZA10A, ZB10A, ZA13A, ZB14A.
5.1 Standard Voltage List
AC Alternating Current: 24V 50Hz, 110V 50Hz, 230V 50Hz
DC Direct Current: 12DC에서, 24DC에서
5.2 Coil Electrical Characteristics
절연 등급: Optional Class F (155℃) / 클래스 H (180℃)
커넥터: DIN43650 3-pin standard plug (2 power pins + earth pin)
전력 소비: 대략. 8AC용 VA; 대략. 6DC의 경우 W
- 전체 치수 & 장착 방법
- 설치 & 고정: Two M3 through mounting holes at valve bottom; mountable at any orientation (수평의, vertical, inverted without position restrictions).
- Key Overall Dimensions (mm):
Total valve length: 45.5, 너비: 28, 키: 21; Thread depth: 9.9
- Coil Assembly: Vertically snap coil onto positioning posts on valve top; secure via rotary latch, no tools required for assembly/disassembly.
- Piping Installation Specifications
- Install upstream filter: 40–100 mesh precision screen to prevent seal scratching by particulate contaminants.
- Thread Sealing: Only wrap the last two rear threads of male pipe fittings with PTFE tape; forbid debris entering valve chamber.
- 토크 제어: Tightening torque for G1/4 fittings: 8–10N·m to avoid thread slipping or brass body cracking.
- Media Flow Direction: Strictly follow marking 1(피)→2(에이) on valve body; reverse pressurization prohibited.
- Maintenance Clearance: Reserve minimum 30mm clearance on coil side for disassembly.
- Electrical Wiring Instructions
8.1 Pre-Wiring Safety Requirements
Perform wiring with power disconnected; confirm zero circuit voltage before plug insertion/removal.
Voltage fluctuation limited within ±10% of rated voltage.
8.2 Terminal Definition (3-Pin DIN Connector)
핀 1: Power Line L / DC Positive (+)
핀 2: 중립선 N / DC Negative (-)
핀 3: Protective Earth (Yellow-Green cable; reliable equipment grounding required)
8.3 AC vs DC Distinction
- AC Coils: 무극성; Pin1/Pin2 can connect live and neutral interchangeably.
- DC Coils: Pin1 connects positive, Pin2 connects negative. Reverse polarity will not damage coil but prevents valve switching.
8.4 Waterproof Treatment
Rubber sealing gasket built into plug; tighten lock nut fully after wiring to maintain IP67 rating. Select LED-indicator waterproof plugs for humid outdoor environments.
- Media Compatibility & 응용 시나리오
9.1 Permitted Media
Dry compressed air, nitrogen, clean water, diluted cutting fluid, vacuum negative pressure circuits
9.2 Prohibited Media
Concentrated acid & alkali, strong organic solvents, high-viscosity oil, particle-laden wastewater, 증기 (custom high-temperature FKM version required for steam service)
9.3 Typical Industrial Applications
- Mini cylinder direction switching for automation equipment
- Adhesive spraying & water mist humidification control for packaging machinery
- Small air circuit shutoff for textile machines
- Laboratory instruments & miniature medical fluid circuits
- Vacuum gripping & water switch control for small cleaning equipment
- 유지관리 절차
10.1 Routine Monthly Inspection
- Check coils for abnormal overheating or abnormal noise
- Inspect pipe threads for media leakage
- Verify no continuous air/water dripping from exhaust port
10.2 Periodic Disassembly & 청소 (모든 3000 Operating Hours)
- Shut off air/water supply, release residual pressure and cut power supply.
- Remove coil, disassemble plunger assembly at valve bottom.
- Rinse contaminants from plunger and valve seat with purified water and anhydrous alcohol.
- Inspect seals for aging or cracking; replace full seal kit if damaged.
- Reassemble in original sequence and perform air/water leakage test.
10.3 예비 부품 목록
씰 키트, complete plunger assembly, matching coils, DIN waterproof connectors
- 고장 진단 & Remedy Matrix
| 결함 현상 | 근본 원인 | Standard Remedial Solution |
| Valve fails to switch on energization | 1. 구운 코일; 2. Mismatched voltage; 3. Differential pressure over 10 bar for DC | 코일 저항 측정, replace compatible coil; reduce pipeline differential pressure |
| Persistent leakage at Port 2 after power-off | Contaminant adhesion on plunger, scratched worn NBR seals | Disassemble and clean plunger; replace full seal set |
| Continuous air leakage at exhaust Port 3 | Damaged seat seal, sealing surface worn by particulate media | Install upstream filter; replace complete valve body assembly |
| Coil overheats rapidly | Excessive supply voltage, long-term over differential pressure, aged coil insulation | Match supply voltage to nameplate; replace Class H high-temperature coil |
| Threaded fitting leakage | Insufficient PTFE tape wrapping, insufficient fitting torque | Rewrap sealing tape and fasten to specified torque |
- Complete Order Model Rules
Standard Full Model Format:
L323V01G-ZA10A 24VDC
Breakdown: Valve Body Model + Coil Model + 정격전압
예:
L323V01G-ZB10A 230VAC (Complete valve with 220V AC coil)
L323V01G-ZA13A 24VDC (Complete valve with 24V DC coil)
Seal Upgrade Marking for Orders: Append suffix -FKM, 예를 들어. L323V01G-FKM-ZA10A 24VDC
- Safety Operating Prohibitions
- Static pressure exceeding 40 bar strictly forbidden; overpressure will rupture brass valve body directly.
- DC circuit differential pressure cannot exceed 10 bar for long-term operation, otherwise full shutoff cannot be achieved.
- Operation without upstream filter prohibited; contaminants will permanently damage seals.
- Hot plug/unplug of coil connector forbidden; electric arcs may burn coil terminals.
- FKM seal version mandatory when medium temperature exceeds 90℃; NBR seals degrade rapidly and fail.
- Reverse media installation (inlet via Port2, outlet via Port1) prohibited; permanent internal leakage will occur.
- Do not cover coil surface with thermal insulation cotton or debris; sufficient heat dissipation space must be reserved.
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